lock LEXUS NX300h 2018 Owners Manual

3857-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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When trouble arises
One of the following may be the cause
of the problem:
 The electronic key may not be func-
tioning properly. ( → P.387)
 There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle. ( → P.64)
 There may be a malfunction in the
immobilizer system. ( → P.69)
 There may be a malfunction in the
steering lock system.
 The hybrid system may be malfunc-
tioning due to an electrical problem
such as electronic key battery
depletion or a blown fuse. However,
depending on the type of malfunc-
tion, an interim measure is available
to start the hybrid system.
( → P.385) One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( → P.390)
 The 12-volt battery terminal con-
nections may be lo ose or corroded.
( → P.333)
One of the following may be the cause
of the problem:
 The 12-volt battery may be dis-
charged. ( → P.390)
 One or both of the 12-volt battery
terminals may be disconnected.
( → P.333) Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the hybrid syst em does not start,
the following steps can be used as an
interim measure to start the hybrid sys-
tem if the power switch is functioning
normally.
Do not use this starting procedure
except in cases of emergency.If the hybrid system will not
start Reasons for the hybrid system not
starting vary depending on the situ-
ation.
Check the following and perform
the appropriate procedure:
The hybrid system will not start
even though the correct starting
procedure is being followed.
( → P.168) The interior lights and head-
lights are dim, or the horn does
not sound or sounds at a low vol-
ume.
The interior lights and head-
lights do not turn on, or the horn
does not sound.
Starting the hybrid system in an
emergency

3877-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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When trouble arises 1 Remove the cover inside the lug-
gage compartment by inserting a
screwdriver.
When removing the cover, to pre-
vent damage, cover the tip of the
screwdriver with a rag.
2 After removing the cover, pull the
lever to unlock the fuel filler door
and it will be ready to open as usual. ■
Things to check before taking measures ●
Make sure that the smart access system
with push-button start has not been deac-
tivated in the customizat ion setting. If it is
off, turn the function on. ●
Check if battery-saving mo de is set. If it is
set, cancel the function. ( → P.123)
Use the mechanical key ( → P.104) to
perform the following operations.If the fuel filler door cannot
be opened If the fuel filler door opener switch
cannot be operated, the following
procedure can be used to open the
fuel filler door.
Opening the fuel filler door If the electronic key does not
operate properly If communication between the
electronic key and vehicle is inter-
rupted ( → P.123) or the electronic
key cannot be used because the
battery is depleted, the smart
access system with push-button
start and wireless remote control
cannot be used. In such cases, the
doors can be opened and the hybrid
system can be started by following
the procedure below.
NOTICE■
In case of a smart access system with
push-button start malfunction or
other key related problems
Take your vehicle with all the electronic
keys provided with your vehicle, includ-
ing the card key, to your Lexus dealer.
Locking and unlocking the doors

388 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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Unlocking the door
1 Insert the mechanical key while
pulling on the driver’s door handle.
2 Unlocking the door.
3 Remove the key, return the handle,
and then pull the handle again. ■
Locking the door
1 Move the inside lock button to the
lock position.
2 Close the door. ■
Key linked functions
The opening and closing of the power win- dows and moon roof can be linked to key
operation by a customized setting.
1 Closes the windows and moon roof
(turn and hold)
2 Opens the windows and moon roof
(turn and hold)
1 Ensure that the shift lever is in P and
depress the brake pedal.
2 Touch the Lexus emblem side of the
electronic key to the power switch. When the electronic key is detected, a
buzzer sounds and the power switch will
turn to ON mode.
When the smart access system with push-
button start is deactivated in customization
setting, the power switch will turn to WARNING■
When using the wire less remote con-
trol or mechanical key and operating
the power windows or moon roof
Operate the power window or moon
roof after checking to make sure that
there is no possibility of any passenger
having any of their body parts caught in
the window or moon roof.
Also, do not allow children to operate the
mechanical key. It is possible for children
and other passengers to get caught in
the power window or moon roof.
Starting the hybrid system

3897-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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When trouble arises ACCESSORY mode.
3 Firmly depress the brake pedal and
check that message shown on the
multi-information display.
4 Press the power switch.In the event that the hybrid system still can-
not be operated, contact your Lexus
dealer.
■
Stopping the hybrid system
Set the parking brake, shift the shift lever to
P and press the power switch as you nor-
mally do when stopping the hybrid system.
■
Electronic key battery
As the above procedure is a temporary
measure, it is recomme nded that the elec-
tronic key battery be replaced immediately
when the battery is depleted. ( → P.347)
■
Alarm
Using the mechanical key to lock the doors
will not set the alarm system. If a door is
unlocked using the mechanical key when
the alarm system is set, the alarm may be
triggered. ■
Changing power switch modes
Release the brake pe dal and press the
power switch in step 3 above.
The hybrid system does not start and modes
will be changed each time the switch is
pressed. ( → P.170)

390 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
al_USA_OM78212U If you have a set of jumper (or booster)
cables and a second vehicle with a 12-
volt battery, you can jump start your
vehicle by following the steps below.
1 Confirm that the electronic key is
being carried.When connecting the jumper (or booster)
cables, depending on the situation, the
alarm may activate and the doors may lock.
( → P.72) 2 Open the hood ( → P.325) and fuse
box cover.
3 Open the exclusive jump starting
terminal cover.
4 Remove the engine cover.If the 12-volt battery is dis-
charged The following procedures may be
used to start the hybrid system if the
vehicle’s 12-volt battery is dis-
charged.
You can also call your Lexus dealer
or a qualified repair shop.
Restarting the hybrid system

392 7-2. Steps to take in an emergency
LEXUS NX300h Owners Manu-
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Starting the hybrid system when the 12-
volt battery is discharged
The hybrid system cannot be started by
push-starting. ■
To prevent 12-volt battery discharge●
Turn off the headlights and the audio sys-
tem while the hybrid system is off.●
Turn off any unnecessary electrical com-
ponents when the vehicle is running at a
low speed for an extended period, such
as in heavy traffic.■
Charging the 12-volt battery
The electricity stored in the 12-volt battery
will discharge gradua lly even when the
vehicle is not in use, due to natural dis-
charge and the draining effects of certain
electrical appliances. If the vehicle is left for
a long time, the 12-volt battery may dis-
charge, and the hybrid system may be
unable to start. (The 12-volt battery
recharges automatically while the hybrid
system is operating.) ■
When the 12-volt battery is removed or
discharged●
In some cases, it may not be possible to
unlock the doors using the smart access
system with push-button start when the
12-volt battery is discharged. Use the
wireless remote control or the mechani-
cal key to lock or unlock the doors.●
The hybrid system may not start on the
first attempt after the 12-volt battery has
recharged but will start normally after the
second attempt. This is not a malfunction.●
The power switch mode is memorized by
the vehicle. When the 12-volt battery is
reconnected, the system will return to the
mode it was in before the 12-volt battery
was discharged. Before disconnecting
the 12-volt battery, turn the power switch
off.
If you are unsure what mode the power
switch was in before the 12-volt battery
discharged, be especially careful when
reconnecting the 12-volt battery.
●
The power back door mu st be initialized.
( → P.110) ■
When replacing the 12-volt battery ●
Use a 12-volt battery that the case size is
same as the previous one (LN2), 20 hour
rate capacity (20HR) is equivalent
(60Ah) or greater, and performance rat-
ing (CCA) is equivalent (460A) or
greater.
• If the sizes differ, the 12-volt battery can-
not be properly secured.
• If the 20 hour rate capacity is low, even if
the time period where the vehicle is not
used is a short time, the 12-volt battery
may discharge and hybrid system may
not be able to start. ●
After exchanging, firmly attach the fol-
lowing items to the exhaust hole of the 12-
volt battery.
• Use the exhaust hose that was
attached to the 12-volt battery before
exchanging and confirm that it is firmly
connected to the hole section of the vehi-
cle.
• Use the exhaust hole plug included
with the 12-volt battery exchanged or the
one installed on the battery prior to the
exchange. (Depending on the 12-volt
battery to be exchanged, the exhaust
hole may be plugged.)
For details, consult your Lexus dealer. C
A
B

4018-1. Specifications
LEXUS NX300h Owners Manu-
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Vehicle specifications This number is also stamped under the
right-hand front seat. ■
Engine number
The engine number is stamped on the
engine block as shown.

FrontEngine Model 2.5 L 4-cylinder (2AR-FXE)
Type 4-cylinder in line, 4-cycle, gasoline
Bore and stroke 3.54 × 3.86 in. (90.0 × 98.0 mm)
Displacement 152.2 cu.in. (2494 cm 3
)
Valve clearance (engine cold) Automatic adjustment
Drive belt tension Automatic adjustment
Fuel Fuel type Unleaded gasoline only
Octane Rating 87 (Research Octane Number 91) or higher
Fuel tank capacity (Reference) 14.8 gal. (56 L, 12.3 Imp.gal.)
Electric motor (traction motor) Type Permanent magnet synchronous motor
Maximum output 105 kW
Maximum torque 199 ft•lbf (270 N•m, 27.5 kgf•m)

4058-1. Specifications
LEXUS NX300h Owners Manu-
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Vehicle specifications *
: The fluid capacity is the quantity of reference.
If replacement is necessary, contact your Lexus dealer.
*
: Minimum pedal clearance when depressed with a force of 110 lbf (490 N, 50.0 kgf)
while the hybrid system is operating.Rear differential (Rear electric motor) Fluid capacity *
1.9 qt. (1.8 L, 1.6 Imp.qt.)
Fluid type Toyota Genuine ATF WS
NOTICE■
Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ca use deterioration in
shift quality, locking up of your transmission accompanied by vibration, and ultimately
damage the transmission of your vehicle.
Brakes Pedal clearance *
4.13 in. (105 mm) Min.
Brake pad wear limit 0.04 in. (1.0 mm)
Pedal free play 0.04 — 0.24 in. (1.0 — 6.0 mm)
Fluid type FMVSS No. 116 DOT 3 or SAE J1703
FMVSS No. 116 DOT 4 or SAE J1704
Steering Free play Less than 1.2 in. (30 mm)

420 8-2. Customization
LEXUS NX300h Owners Manu-
al_USA_OM78212U Definition of symbols: O = Available, – =Not available ■
Door lock ( → P.106, 387)
■
Smart access system with push-butto n start and wireless remote control
( → P.106, 122) Function Default setting Customized set-
ting
Unlocking using a mechani-
cal key Driver’s door
unlocked in first
step, all doors
unlocked in sec-
ond step All doors
unlocked in first
step — — O —
Automatic door locking func-
tion Shift position
linked door lock-
ing operation Off O — O —
Speed linked
door locking
operation O — O —
Automatic door unlocking
function Shift position
linked door
unlocking opera-
tion Off O — O —
Driver’s door
linked door
unlocking opera-
tion O — O —
Function Default setting Customized set-
ting
Operation signal (emergency
flashers) On Off O — O —
Operation buzzer volume 5 Off
O — O —
1 to 7
Time elapsed before the auto-
matic door lock function is
activated if a door is not
opened after being unlocked 60 seconds Off
O — O —30 seconds
120 seconds
Open door reminder buzzer
(When locking the vehicle) On Off — — O — A B C D
A B C D

4218-2. Customization
LEXUS NX300h Owners Manu-
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Vehicle specifications ■
Smart access system with push-button start ( → P.122)
■
Wireless remote control ( → P.106)
■
Automatic light control system ( → P.183)Function Default setting Customized set-
ting
The doors that are unlocked
using the smart access sys-
tem with push-button start
can be selected Driver’s door All the doors O — O O
Smart access system with
push-button start On Off — — O —
Number of consecutive door
lock operations 2 times As many as
desired — — O —
Function Default setting Customized set-
ting
Wireless remote control On Off — — O —
Unlocking operation Driver’s door
unlocked in first
step, all doors
unlocked in sec-
ond step All doors
unlocked in first
step O — O —
Panic function On Off — — O —
The function that validates the
switch of the wireless
remote control when locking
the door ( → P.110) When locking the
door When unlocking
the door — — O —
Function Default setting Customized set-
ting
Light sensor sensitivity Standard -2 to 2 O — O —
Adjust the time elapsed
before the headlights auto-
matically turn off 30 seconds Off
O — O —60 seconds
90 seconds A B C D
A B C D
A B C D